%0 Journal Article
%T Genetic Analysis of Cold Tolerance at the Seedling Stage in Dongxiang Wild Rice (Oryza rufipogon)<br>东乡野生稻苗期耐冷性的遗传分析
%A Shuirong Jian
%A Yong Wan
%A Xiangdong Luo
%A Jun Fang
%A Chengcai Chu
%A Jiankun Xie
%A <br>简水溶
%A 万勇
%A 罗向东
%A 方军
%A 储成才
%A 谢建坤
%J 植物学报
%D 2011
%I 
%X We examined the cold tolerance of seedlings of a BILs population (BC1F9) of Dongxiang wild rice (Dwr)/Xieqingzao B (Xqz B)//Xqz B by cold treatment assay and genetic analysis. The control materials included the strong cold-tolerant variety, Longdao 5, and the cold-sensitive cultivar Xqz B, using seedling wilting rate and seedling mortality rate as evaluation indices. After cold treatment (10°C) for 7 days, the mean seedling wilting rate and seedling mortality rate for 228 BILs were 67.4% and 70.8%, respectively. The lines with only 20% seedling mortality rate or below were further treated with a colder temperature of 8°C day/5°C night for 5 days. The lines 5243 and 5335 were the most coldtolerant and may be useful for constructing quantitative trait loci-near-isogenic lines of Dwr. Moreover, the skew-normal and continuous distribution of seedling wilting and mortality rates suggest that cold tolerance at the seedling stage in Dwr represents the inheritance of qualitative-quantitative traits which are controlled by major genes and polygenes.
%K cold tolerance
%K Dongxiang wild rice
%K near-isogenic lines
%K qualitative-quantitative traits
%K quantitative trait loci<br>耐冷性
%K 东乡野生稻
%K 近等基因系
%K 质量-数量性状
%K 数量性状基因位点
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=97AE3D0EBF25E42C466FEF50E492F710&aid=8CFE8F8C7609D402E4AECFA4792D32FB&yid=9377ED8094509821&vid=D997634CFE9B6321&iid=CA4FD0336C81A37A&sid=659D3B06EBF534A7&eid=DB817633AA4F79B9&journal_id=1674-3466&journal_name=植物学报&referenced_num=1&reference_num=0